/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 */

#include <sal/config.h>

#include <font/EmphasisMark.hxx>

namespace vcl::font

{

EmphasisMark::EmphasisMark(FontEmphasisMark eEmphasis, tools::Long nHeight, sal_Int32 nDPIY)

{

    static const PolyFlags aAccentPolyFlags[24] =

    {

        PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,

        PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,

        PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,

        PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,

        PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,

        PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,

        PolyFlags::Normal, PolyFlags::Normal,  PolyFlags::Control,

        PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control

    };

    static const Point aAccentPos[24] =

    {

        {  78,    0 },

        { 348,   79 },

        { 599,  235 },

        { 843,  469 },

        { 938,  574 },

        { 990,  669 },

        { 990,  773 },

        { 990,  843 },

        { 964,  895 },

        { 921,  947 },

        { 886,  982 },

        { 860,  999 },

        { 825,  999 },

        { 764,  999 },

        { 721,  964 },

        { 686,  895 },

        { 625,  791 },

        { 556,  660 },

        { 469,  504 },

        { 400,  400 },

        { 261,  252 },

        {  61,   61 },

        {   0,   27 },

        {   9,    0 }

    };

    mnWidth      = 0;

    mnYOff       = 0;

    mbIsPolyLine   = false;

    if ( !nHeight )

        return;

    FontEmphasisMark    nEmphasisStyle = eEmphasis & FontEmphasisMark::Style;

    tools::Long                nDotSize = 0;

    switch ( nEmphasisStyle )

    {

        case FontEmphasisMark::Dot:

            // Dot has 55% of the height

            nDotSize = (nHeight*550)/1000;

            if ( !nDotSize )

                nDotSize = 1;

            if ( nDotSize <= 2 )

                maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );

            else

            {

                tools::Long nRad = nDotSize/2;

                tools::Polygon aPoly( Point( nRad, nRad ), nRad, nRad );

                maPolyPoly.Insert( aPoly );

            }

            mnYOff = ((nHeight*250)/1000)/2; // Center to the another EmphasisMarks

            mnWidth = nDotSize;

            break;

        case FontEmphasisMark::Circle:

            // Dot has 80% of the height

            nDotSize = (nHeight*800)/1000;

            if ( !nDotSize )

                nDotSize = 1;

            if ( nDotSize <= 2 )

                maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );

            else

            {

                tools::Long nRad = nDotSize/2;

                tools::Polygon aPoly( Point( nRad, nRad ), nRad, nRad );

                maPolyPoly.Insert( aPoly );

                // Border mnWidth is 15%

                tools::Long nBorder = (nDotSize*150)/1000;

                if ( nBorder <= 1 )

                    mbIsPolyLine = true;

                else

                {

                    tools::Polygon aPoly2( Point( nRad, nRad ),

                                           nRad-nBorder, nRad-nBorder );

                    maPolyPoly.Insert( aPoly2 );

                }

            }

            mnWidth = nDotSize;

            break;

        case FontEmphasisMark::Disc:

            // Dot has 80% of the height

            nDotSize = (nHeight*800)/1000;

            if ( !nDotSize )

                nDotSize = 1;

            if ( nDotSize <= 2 )

                maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );

            else

            {

                tools::Long nRad = nDotSize/2;

                tools::Polygon aPoly( Point( nRad, nRad ), nRad, nRad );

                maPolyPoly.Insert( aPoly );

            }

            mnWidth = nDotSize;

            break;

        case FontEmphasisMark::Accent:

            // Dot has 80% of the height

            nDotSize = (nHeight*800)/1000;

            if ( !nDotSize )

                nDotSize = 1;

            if ( nDotSize <= 2 )

            {

                if ( nDotSize == 1 )

                {

                    maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );

                    mnWidth = nDotSize;

                }

                else

                {

                    maRect1 = tools::Rectangle( Point(), Size( 1, 1 ) );

                    maRect2 = tools::Rectangle( Point( 1, 1 ), Size( 1, 1 ) );

                }

            }

            else

            {

                tools::Polygon aPoly( SAL_N_ELEMENTS(aAccentPos), aAccentPos,

                                      aAccentPolyFlags );

                double dScale = static_cast<double>(nDotSize)/1000.0;

                aPoly.Scale( dScale, dScale );

                tools::Polygon aTemp;

                aPoly.AdaptiveSubdivide( aTemp );

                tools::Rectangle aBoundRect = aTemp.GetBoundRect();

                mnWidth = aBoundRect.GetWidth();

                nDotSize = aBoundRect.GetHeight();

                maPolyPoly.Insert( aTemp );

            }

            break;

        default: break;

    }

    // calculate position

    tools::Long nOffY = 1+(nDPIY/300); // one visible pixel space

    tools::Long nSpaceY = nHeight-nDotSize;

    if ( nSpaceY >= nOffY*2 )

        mnYOff += nOffY;

    if ( !(eEmphasis & FontEmphasisMark::PosBelow) )

        mnYOff += nDotSize;

}

}

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